英文书摘精选 为何香蕉会那么快坏掉
时间：2018-12-28 作者：英语课 分类：初学者听力文摘精选
When Good Bananas Go Bad
当香蕉开始腐坏
Have you ever wonder why bananas seem to go bad so quickly? And why do they develop those brown spots?
你是否曾好奇过为什么香蕉特别容易坏掉，并长出棕色的斑点呢？
Well, those spots are a natural part of the ripening 2 process. You see, just like all fresh produce, your bananas are alive. They’re taking in oxygen to help them convert sugars into energy, and releasing carbon dioxide. This process is called respiration 3.
其实那些斑点是香蕉成熟过程中的自然组成部分。你知道，和所有的新鲜果蔬一样，香蕉是“活”的。它们不断地吸收氧气来并把糖类转换成能量，释放出二氧化碳。这一过程称为呼吸作用。
The quicker a fruit or vegetable respires, the quicker it ripens 4. For most fruits, the respiration rate slows down after the initial growth stage and the fruit ripens slowly. The growth and ripening process of bananas, however, is different. Although at first the banana’s respiration slows down too, when it’s ready to ripen 1, the banana’s pulp 5 releases a chemical that increases respiration. This converts the starches 6 in the banana to sugars and gives it its fabulous 7 taste.
果蔬的呼吸作用越快，则成熟得越快。呼吸作用会在生长初期过后减弱，水果的成熟过程也会变慢。然而，香蕉的生长和成熟过程却并不是这样。尽管一开始香蕉的呼吸作用也会减弱，但当它快要成熟时，香蕉的果肉会释放出一种化学物质促使呼吸作用增强。在这一过程中香蕉会把体内的淀粉转化成糖，从而变得美味无比。
With all this respiration, the banana eventually processes all the starches available. And that’s when it begins to die. Those brown .
正是这种呼吸作用使香蕉最终把所有的淀粉转化成糖。而这也是它开始变质的时候，那些棕色的斑点就是它腐烂的标志。
- I'm waiting for the apples to ripen.我正在等待苹果成熟。
- You can ripen the tomatoes on a sunny windowsill.把西红柿放在有阳光的窗台上可以让它们成熟。
- The corn is blossoming [ripening]. 玉米正在开花[成熟]。 来自《现代汉英综合大词典》
- When the summer crop is ripening, the autumn crop has to be sowed. 夏季作物成熟时，就得播种秋季作物。 来自《简明英汉词典》
- They tried artificial respiration but it was of no avail.他们试做人工呼吸，可是无效。
- They made frequent checks on his respiration,pulse and blood.他们经常检查他的呼吸、脉搏和血液。
- The sun ripens the crops. 太阳使庄稼成熟。 来自《简明英汉词典》
- Then their seed ripens, and soon they turn brown and shrivel up. 随后，它们的种子熟了，不久就变枯萎。 来自辞典例句
- The pulp of this watermelon is too spongy.这西瓜瓤儿太肉了。
- The company manufactures pulp and paper products.这个公司制造纸浆和纸产品。